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coincellhell.c
coincellhell.c 7.33 KiB
/* * Copyright (c) 2023 Carl Klemm <carl@uvos.xyz>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * Neither the name of %ORGANIZATION% nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define _POSIX_C_SOURCE 199309L
#include <stdint.h>
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include <assert.h>
#include "coincellhell/coincellhell.h"
#include "usbshm.h"
#include "usbcommands.h"
#define VID 0xfe17
#define PID 0x08dc
static void usleep(uint64_t microseconds)
{
struct timespec ts;
ts.tv_sec = microseconds / 1000000;
ts.tv_nsec = (microseconds % 1000000) * 1000;
nanosleep(&ts, NULL);
}
int coincellhell_connect(struct coincellhell* hell, uint16_t serial)
{
int ret;
hell->priv = malloc(sizeof(*hell->priv));
if(!hell->priv)
return -1;
ret = usbshm_init(hell->priv, NULL, hell);
if(ret)
return -2;
unsigned char serialStr[5];
snprintf((char*)serialStr, sizeof(serialStr), "%04hu", serial);
ret = usbshm_open(hell->priv, VID, PID , serial == 0 ? NULL : serialStr);
if(ret)
return -3;
return 0;
}